Nerf Dart on the Ceiling
As mentioned previously in these little captions, during Riven development most of us were armed with various Nerf equipment. The day we moved into our current building, I shot a dart up to the metal ceiling. Usually the darts fell within a few seconds, maybe a few minutes if you really got it up there good. This one's been up there over four years, and still hasn't fallen yet. :)
Yep, still there...
Kinda hard to see way up there.